ENGINE-PROPELLER AIRCRAFT SCREW AIR FLOW STABILIZER Russian patent published in 2021 - IPC B64C1/00 B64C5/00 

FIELD: machine building.

SUBSTANCE: invention relates to design of screw air flow stabilizer of propeller aircraft. Screw air flow stabilizer of a propeller aircraft containing a propeller, a wing and a nacelle is arranged on the upper surface of the wing and nacelle. Stabilizer is L-shaped in cross section and consists of a thin-walled biconvoiced horizontal cross-section of a vertical stabilizer and a horizontal stabilizer attached perpendicular to it with an aerodynamic longitudinal profile. At that, the vertical stabilizer is located in the plane passing through the screw axis, and the horizontal stabilizer faces towards the direction of the screw rotation, the front end face adjoins to the propeller blades and ends at the rear wing edge.

EFFECT: proposed invention provides creation of high-efficiency stabilizer of screw air flow of propeller aircraft, which provides straightening and ordering of screw air flow, higher tractive effort and efficiency of propeller plant.

1 cl, 2 dwg